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<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>JavaScript 基础语法</title>

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    <script src="js/js_01_基础语法.js"></script>
    <script>
        alert("head");
    </script>
</head>
<body>

</body>
<script>
    alert("body");
</script>
</html>